Nonskid tire chain



July 4, 1933. c. l.. SMITH NONSKID TIRE CHAIN Filed Nov. 15, 1931 liatented July 4, 1932?y iro As'm'rlss 1,917,161 Partnr orricr.

CHARLES LEONARD SMITH, OF ROCHESTER, `NlK YORK, ASSTGNR OF ONE-HALF TO HARRY DUCKTIIAN, OF ROCHESTER, `NEW' YORK f NoNsxrn TIRE CHAIN Application led November 13, 1931. Serial No. 574,720.

The object of this invention is to pro` vide a new and improved type of non-skid chain for automobile tires.

Another object of the invention is to provide the tire chain with rectangular shaped pads made up of rings of two sizesarranged in lines vand rows, the small rings interlocking with the large rings.

Another object is to attach the pads at the corners to the side chains of the tires 4by linhs that extend out diagonally from the corners, the pads being held flat thereby on the tread of the tire.

These and other objects of this invention will be fully illustrated in the drawing, described in the speciiication,and pointed out in the claims at the end thereof.

Tn the drawing:

Figure l is a plan view of the chain. e

Figures 2 and 3 are detail views of thelarge and small rings used in my improved tire chain. n

Tn the drawing like reference numerals 1ndicate'lilre parts.

Thenon-skid chain for automobile tires forming the subject matter of this invention is an improvement on the non-skid tire chain 1 shown in my prior Patent 1,610,883, and it comprises a series of Wire pads which are adapted to lie flat upon the tread of the tire, and are attached to and stretch out between the side chains 2 and 3. Each of the wire pads are made up of a series of rings oi two sizes, suitably interloclred together. The large rings are indicated byA the reference numerals d, and are preferably about seveir eighths o1c an inch inside diameter, and the small rings are indicated by the reference numerals 5 and are preferably about fiveeighths or an inch inside diameter. These sizesvmay be varied from indefinitely.l Each ring is made of two turns of wire.

ils shown in Figure l, each pad is comM posed or four parallel rows of large rings el, there being six large rings in each row, or a total of 24e large rings altogether in each pad. These large rings are held together by small rings 5, of which there are four pan allel rows of five rings each extending across the tread of the tire and parallel lin-es of three rings eac-h in each line exteinfliiig circumferentially around the tire. There is thus in each rectangular pad 24 large rings and 38 small rings. y

Tn each of the Jfour corners ot' the pad is provided a small ring 6 with a hook 7 that is adapted to engage with the side chains 2 and 3, by which the pad is stretched out and held in open position iiat on the tread oi the tire. This is its normal position, and in this position vthe large rings lie substantially flat on the tread oi the tire in Contact or almost in Contact therewith. The small rings stand practically upright thereon directly in contact with the tread of the tire. The small rings standing in transverse rows and the 18 small rings standing in circumferential rows taire hold directly on the surface of theroad and prevent the tire from slipping or skidding thereon either forward or back or sideways in .either direction. The pad isthus presented to the road with 'the maximum or best gripping eiiect thereon.

I claim:

l. A non-slid tire chain comprising a series or friction pads resting yon the4 tread of the tire with open spaces between them,

circular chains v.extending around the tire on each side thereof, said pads being connected to said chains by diagonal links, each of said padsbeing made up of parallel rows of rings lying iat on the tire, said rings beingconnected together loosely by rings standing upright on the tire and being arranged in rows transverse to the tread of the tire and in lines running parallel to the tread of the tire, four of 'the upright rings and four of the horizontal rings being arranged substantially in a square and enclosing an open space between them.

2. A non-skid tire chain comprising a series of friction pads resting on the tread of the tire with open spaces between them, circular chains extending around the tire on each side thereof, said pads being connected to saidchains by diagonal links, each of said pads being made up of parallel rows of circular rings disposed -l'latwise to the tire, said rings being connected together loosely by circular rings disposed in angular relation to said first named rings, and being arranged in rows'transverse to the tread of the tire and in lines running` parallel to the tread of the ture.

CHARLES LEONARD SMITH. 

